Centrifugal separator.



P. H. IE'LEEGE.

CENTRIPUGAL SEPARATOR. APPLICATION FILED FEB. 19, 1909.

Patented June 14,1910.

2 BEEETSBHBBT 1.

F. H. PLEEGE. GENTRIFUGAL SEPARATOR. APPLICATION FILED P113219, 1909.

961 4880 I I .Pat ented Jfine 14,1910.

2 SHEETS-SHEET 2.

IIIHI! FFC FK H.- FLEEGE, OF ST. LOUIS, MISSOURI, ASSIGNOR TO ROBERT J.LEACOGK,

TRUSTEE, QF Sit. LOUIS, MISSOURI. I

caivrarrnean snranaron.

oeiasa;

Specification of Letters Patent. Patented June 14,1910. 7

Application filed February 19, 1909. Serial No. 78,767.

To all whom it may concern:

Be it known that I, FRANK H. Fnnncn, a citizen of the United States,residing at St. Louis, Missouri, have invented a certain new and usefulImprovement in Centrifugal Separatora of which the following is'a full,clear and exact description, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to centrifugal separators, and particularly tothe type shown in my rior United States Patent No. 792,577, ate d June13, 1905.

One object of my present invention is to provide a separator 0f the typereferred to having a separating cone arranged at the upper end of thebowl and constructed in such a manner that it can be removed quickly andthoroughly cleaned.

1 Another object is to provide a separator of .the character describedin which the cone solution that is to be separated, and one or morechambers surrounding said bowl and communicating with the interiorthereof for receivin and collecting the constituents of said so utionthat are of comparatively greater specific gravity. And still anotherobject is to provide a separator in which the arms that-are locatedinside of the bowl are arranged in a novel manner.

Figure 1 of the drawings is an elevational view, partly in verticalsection, of a separator embodying the various features of my invention;Fig. 2 is a horizontal sectional view of the bowl. taken onapproximately the line 2-42 of Fig. 1; Fig. 3 is an elevational View,partly in vertical sect-ion. of a modified form of my inventiomFig. elisa horizontal sectional view of the bowl shown in Fig. 3, taken onapproxin'iately the line at-Ac .of said figure; Figs. '5, 6 and 7 arevertical sectional views of slightly modified forms of bowls; and Figs.8, 9 and 1d are horizontal sectional views of the. bowls shown in Figs.5, 6 and 7 respectively.

Referring, to the 'drawin s which illustrate the preferred form 0 myinvention, 1 designates a stationary base on which a support or standard2. is adjustably mount ed, as hereinafter described, said standard beingprovided with an arm or extension 3 that carries a vertically disposedshaft 4 which is adapted to be rotated by some suitable means;

The bowl A of the separator is connected to the shaft 4 so that it willrotate with same, and said bowl is provided with a removable top orcover B that has a screwthreaded flange 5 which is screwed onto theupper end of said bowl. This cover B has a conical-shaped portion thatmerges into a on its interior with a beveled seat that is' adaptedfto beengaged by a beveled collar 7 on thetubula r-shaped portion 8 ofaseparating cone C that is arranged inside of the bowl A, as shown inFig. 1. The liner that is arranged inside of the bowl consists of ahollow shaft D provided adjacent its upper end with a beveled. collar 9that fits in a beveled seat on the interior of the tolerlar-shapedportion 8 of the cone C. th:.- up perend of said shaft projecting into areceptacle 10 that receives the solution which is to be separated. Saidshaft D is provided with anumber of laterally projecting arms 11 thatterminate adjacent the side of the bowl, and inthe construction shown inFigs. 1. and 2; said arms 11 are screwed directly into the shaft 1).

"The beveled collars on the liner shaft-l) and on the cone G are held inengagement with the tapered seats which they cooperate with byyicldingiprcssi'ire so as to form tight joints between said parts.

gagement; with its cooperating seat on the interior "of thetubulan-shaped portion 8 of the cone C. The upward pressure which the Inthe construclion-herein shown the liner shaft 1) is pro li ncr shaft'isthus subjected to will, of coursb, 3

tend to move the cone upwardly and thus hold the tapered. collar 7 onsald-cone in intimate engagement with its cooperating seat on theinterior of the tubular-shaped portion 6 of the'top or cover B of thebowl.

The bottom of the bowl is provided-with suitable grooves. 01' shoulders,for receiving the lower ends of the vielding devices or extensions 12 onthe ldwer end of the liner shaftso as tov cause said shaftto rotate withthe bowl.

The light constituents of the solution I being'separated pass upwardlyinside of the imposed one upon the other, and the stand- Isolutiorr'from the supply pipe 19.

2 is provided with a bracket 17 on which the receptacle 16 rests, asshown in Fig. 1, the receiving receptacle l0 bein provided with a float18 that controls the ow of the When itj'is 'desired to clean the'pa rtsof the separator, the receptacles 10, let and '16- are removed'andthetop or'cover B ofthe, bowl is then unscrewed so as to enable theliner-and cone to. be removed. In view. of the fact that the cooperatingsurfaces or contacting faces between the cover B and thecone, andbetween thecone and the liner shaft, are perfectly smooth, the parts canbe removed quicker and can be cleaned more thoroughly than if said partswere connected together by screw threads as in the separators now ingeneral use.

As it-is necessary to have the bowl perfectly level I have constructedthe standard 2 in such a manner that it can be adjusted relatively tothe stationary base 1. In the form of my invention shown, in Fig. 1, thebase 1 is provided with an iapp'roximately ball-shaped projection 20"that fits in a socket on the standard 2, said standardconsisting of twoor more sectioths that are held together by bolts 21 which cause thestandard to firmly clamp the ball-shaped projection 20 on the base andthus lock the standard in position. In the form' of my inventionillustrated in Fig. 3 the base 1 is provided with a concaved' seat andthe standard 2 is I provided with a convexed lower end that fits in saidseat, the standard being clamped to the base by means .of-a bolt 21". Byconstructing the standardlin this-manner it a very simple mattertoadjust itsso as to make thebowl perfectly-level- Qne feature of my-present-inventiqnlwhich I believe is broadly newin centrifugal sepa- .ra

more chambers for receiving and collecting the constituents: of comaratively greate specific gravit In the orm of mylinven tion illustratein Fig. 1 the bowl A ispro-i' vided with an annular chamber that surrounds the lower portion ofthe bowl, thewall of the bowl beingprovidedwith aplupermit the heavier constituents of the. tolution toenter said chamber when the bowl 1s rotated. When the separator is beingused for separating cream from milk, the bacterium in the milk, which isof greater specific gravit than the 'milk, willbe thrownbyl centri 'ugalforce through the slots '22 intlfe rality of'vertically disposed slots22 that bowl and lodge in the chamber E, and the milk and cream will beforced upwardl into the rece tacles 16- .and 14, respective y,, aspreviously described. I prefergto form, the slots 22 tapered orapproximately, wedge shaped in cross section, as shown in "Fig. 2,

so that each slot will have a comparatively v wide entrance and 'anarrow outlet which overcomes any tendency of theparticles to escapefrom the slots back into the. bowl after they have once entered theslots. I If desired, the bowl can have a plurality ofreceiving chambersE and E, as shown in Figs/7 and 10, so as to more finely grade thesolution or eflect a more thorough 'separation thereof,the heaviestconstituents, of

stituents ofv any suspended solution onefrom another. I have hereinshown the chamber E formed by ana )p'roximately cup-shaped member-23that orms the bottom of the bowl A, the sides of the bowl being formedby. an open-ended cylinder that PIOJGCCS into the member 23 and rests onthe bottom thereof. Said cylinder :is of less diameter than the member23 so that a chamber E will be formed between said parts. The upper end.ofthe' member 23 is screwed into aiflangew '24 on the exterior of saidcylinder, as shown clearly in Fig. 1;:ss as to enable said parts to beseparatedwhenit is desired to remove the substance that has collected inthe cham ber of providing the liner shaft D with laterall projectingarms 11,"as shown inPEigsnLa, 11 2, the bowl A. can be provided on itsinterior with arms llrthat project inv wardly' -i toward: the shaft D.as shown i'n 4 providing the bowl with onegorf other form of bowl inwhich vertically dis-' posed arms; 11 project upwardly from the bottomof the bowl, said .arms being arranged in rows that extend radially fromthe longitudinal center of the bowl, as shown in Fig. 8. In the bowl.shown in Fig. 5 the solution is introduced into the lower end of thebowl through an opening 25 in the bottom thereof instead of beingintroduced through a pipe or hollow shaft that projects through thecover of the bowl. The bowl shown in Figs. 6 and 9 is also provided inits bottom with an o ening 25 through which the solution is intro ucedand instead of having the arms 11 connected directly to the bowl saidarms are connected to a sleeve 26 which is slipped inside of the bowl,the arms projecting inwardly from said sleeve toward the longitudinalaxis of the bowl.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is: i

1. In a separator, a rotatable bowl for holding asolution, the upperportion of said bowl being imperforate and the lower portion of the bowlbeing provided with slots, and a closed chamber communicating with saidopenings for receiving and retaining the constitutents of said solutionthat are of the greatest specific gravity and which are thrown throughsaid openings by centrifugal force.

2. In a separator, a bowl for holding a solution, a plurality of annularchambers arranged in approximately the same horizontal plane, one withinthe other, and surrounding said bowl, and means for permitting theconstituents of said solution in said bowl to be thrown by centrifugalforce from said bowl and collected in said chambers,

3. In a separator, a rotatable bowl for holding a solution,'a chambersurrounding said bowl, and slots in the sides of said bowl above thebottom thereof for permitting the constituents of said solution to bethrown by centrifugal force into said chamber and collect therein, theupper portion of the bowl being imperforate.

4. In a separator, a rotatable bowl for holding a solution, the sidewalls of said bowl being provided with approximatelay verticallydisposed slots that terminate a j acent the bottom of the bowl, and acontinuous annular chamber surrounding said bowl for collecting andretaining the constituents of said solution that are thrown through saidslots by centrifugal force;

5. In a centrifugal separator, a bowl for holding a sus ended solution,the side walls of said bowl being provided with vertically disposedslots which are of greatest dimen' sions on the inner side of the bowl,and a hollow member surrounding said bowl to form a chamber whichreceives and retains the solution that is thrown. through said slots bycentrifugal force.

6. In a separator, a rotatable bowl, means for introducing a solutioninto saidbowl, substantially vertical slots-in the sides of said bowl,and a hollow member detachably connected to said bowl and forming achamher that communicates with said slots for collecting andr'etainingthe constituents of said solution that are thrown through said slots bycentrifugal force. it

7. In a separator, an approximately cupshaped member, a cylinder of lessdiameter than said member and arran ed inside of same, a laterallyprojecting ange' on the outer surface-of said cylinder provided with adepending ring-shaped portion to which the upper edge of said cup-shapedmember is connected by means of screw threads, and

communicating with openings in the sides of the bowl for collecting theheavier con stituents of said solution that do not enter saidreceptacles,

9. In a separator, a rotatable bowl, means for introducing a suspendedsolution into said bowl, receptacles arranged adjacent the upper end ofthe bowl, means for causing difi'erent constituents of the solution toenter said receptacles when thebowl rotates, a

chamber surrounding the lower portion of the bowl, and slots formed inthe side walls of the bowl above the bottom thereof so as to permit theheavier constituents to be thrown outwardly by centrifugal force intosaid chamber.

10. In a separator, a rotatable bowl for receiving the solution that isto be separated,

a top or cover for said bowl, a separating a member spaced away from theinner face of the cover and conforming to the shape thereof, a hollowshaft projecting into said bowl and provided with means for engagingsaid separating member, and yielding fingers on the lower end of saidshaft that bear against the bottom of the bowl and thus exert upwardpressure on said shaft so as to retain said separating member inposition.

11. In a separator, a bowl provided with a removable cover having a tacred recess rating member provided with a beveled collar that fits insaid recess and havin its lower edge spaced away from the side 0 thebowl so as to permit the solution beingseparated to ass between saidmember and cover, and a spring for exerting upward on the interiorthereof, a cone-s iaped sepa- I pressure on said separating member so asto hold the collar thereon seated in the recess in said cover.

12. In a separator, a bowl provided with a removable cover having asubstantially t'ubulanshaped portion, a cone-shaped sepa- '-of the bowlso as to permit-the. solution 1 rating menu or having a tubular-shapedportion that fits inside of the tubular-shaped portion on said cover,the loweredge of-said member being spaced away from the side beingseparated to pass between said member'and cover, cooperat' inclinedfaces on said tubular-shaped portion, and a spring for facing said searating member .upwardly so as to 'hol said inclined faces in intimateengagement with each other.

13. In a separator, a rotatable receivin bowl, a cover for said bowlprovided' wit1 on its interior, wit

a tubular-shaped rtionwhich is provided a beveled seat, a separatingdevice having a tubular-shaped portion that projects through thetubular-shapedportion on saidcoveiga beveled collar on on the" cover, ahollow sha said separating device thaten ges the "seat projectingthrough said separating device and having a portion that engages same,and ielding means for forcingsald shaft upwar y so as to hold the collaron said separating device in intimate engagement with the seat onsaidcover;

14. In a se arator, a rotatable :receivin bowl, a liners aft projectininto said bow and provided with a bevel collar, a separating cone havinga tubular-shaped portion that surrounds said liner shaft and engages thecollar thereon, the tubular-shaped porthe bowl and having a bev fits ina-ta ered recess on the tubulamshaped' the cone, and yielding devicesterior of said bowl'and projecting ftion of said'oone being providedon'its ex-' terior with a beveled collar, a cover for said bowl having aportion that cooperates with the collar on said se arating cone, andyielding means for 11-01 ing the cone in engagement with said cover andthe liner shaft in engagement with the tubular-shaped portion of thecone.

15. In a separator, a rotatable receiving bowl, a cone-shaped coverdetachably -connected to said bowl and provided with a tubular-shapedportion, a separating cone arranged inside of said cover and providedwith a tubular-shaped portion that has a beveled collar which fits in atapered recess on said cover, a liner shaft prqecting into e ed collarthat portion o connected to the lower end et said liner shaft andengaging the bottom of said bowl.

16. In a separator, a rotatable bowl for containin matter in,suspension, and horizontally lsposed arms arranged 1ns1de or said bowland terminating near thecenter

